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Avoid sign conversion warnings in error_code::value

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Peter Dimov
2022-01-19 17:30:56 +02:00
parent 5b96abbaa8
commit 4b1caad727
1 changed files with 5 additions and 1 deletions
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6
include/boost/system/detail/error_code.hpp
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@ -188,7 +188,11 @@ public:
#if defined(BOOST_SYSTEM_HAS_SYSTEM_ERROR)
std::error_code const& ec = *reinterpret_cast<std::error_code const*>( d2_ );
return ec.value() + 1000 * static_cast<unsigned>( reinterpret_cast<boost::uintptr_t>( &ec.category() ) % 2097143 ); // 2^21-9, prime
unsigned cv = static_cast<unsigned>( ec.value() );
unsigned ch = static_cast<unsigned>( reinterpret_cast<boost::uintptr_t>( &ec.category() ) % 2097143 ); // 2^21-9, prime
return static_cast<int>( cv + 1000 * ch );
#else
return -1;